package com.itheima.reggie.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.ShoppingCart;

import java.util.List;

public interface ShoppingCartService extends IService<ShoppingCart> {
 R<ShoppingCart> add(ShoppingCart shoppingCart);

 R<List<ShoppingCart>> list1();

 R<ShoppingCart> sub(ShoppingCart shoppingCart);

 void delete();
}
